Application of Colorimeter in Production

Colorimeter is a kind of color measuring equipment used to capture and evaluate colors, which plays an important role in color control procedures. Brands and designers use them to communicate colors, and manufacturers use them to monitor color accuracy throughout the production process. The colorimeter can measure almost anything (including liquid, plastic, paper, metal and fabric) and ensure that the color is consistent from concept to delivery. The spectral reflectance curve provided by the colorimeter is usually considered as the “fingerprint” of the color. Colorimeter can measure and quantify color on various surfaces.

In the industry, product colors are required to be consistent. Due to the above reasons, there will be deviation in product color, which will reduce the quality of the product. In serious cases, it will lead to failure in acceptance and delivery. At this time, we need to use color measuring instruments such as colorimeter to control the color difference of products.

Control method I: control the product quality of the factory
To ensure the color consistency of each batch of products, a product color standard should be formulated as the factory standard. A certain amount of samples can be taken from different batches of the same product (hereinafter referred to as Product A) for measurement. After measurement, select the products with relatively large color difference, and take the products with relatively similar residual color difference as the calibration samples of product A. Measure the color value of the calibration sample with a color difference meter in turn, and calculate the average value (the instrument can automatically calculate the average value). The average value shall be used as the color factory mark of product A and stored in the colorimeter. The storage sample number can be set to 001 for easy memory. If there are multiple products, the factory marks can be measured in sequence according to the above method, and stored as 002, 003, etc.

In the future production process, to check whether the color of product A is qualified, you can call out the standard sample value (data 001) of product A from the color difference meter storage, and then locate the standard value. Take samples from each batch of product A for measurement, and the measured color difference value is the result of comparison with the factory standard. Color difference value of product（ Δ E) Now most manufacturers control it within 0.5 or 1, that is, color difference（ Δ E) If the color difference is less than 0.5 or 1, the product is regarded as unqualified. If the color difference is more than 0.5 or more than 1, the product is regarded as unqualified. For other products, the corresponding product manufacturer’s standard is called out in this way, and then the standard value is determined for measurement and analysis.

Control method II: production according to standard samples
Many companies order products according to the samples provided by the ordering company. They can measure the samples provided by the other party with a colorimeter, store the measurement results in the instrument, and remember the stored sample number as a standard sample. During application, call out the value of this standard sample and set it as the measurement standard value, then measure the products produced in turn, inspect the product color difference value according to the steps of “Method 1”, and evaluate whether the product color is qualified.

LISUN lauched Portable Colorimeter/Chroma Meter is an innovation color measuring tool with powerful configuration to make color measurement easier and more professional; It support Bluetooth to connect with Android and ISO devices, Portable Colorimeter/Chroma Meter will take you into a new world of color management; It can be widely used to measure color value, color difference value and find similar color from color cards for printing industry, paint industry, textile industry, etc.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

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